我如何能够使用我的代码从这个 XML 获得这个:
<lfm status="ok"><results for="sub bass monster ragga">
<opensearch:Query role="request" searchTerms="sub bass monster ragga" startPage="1"/> <opensearch:totalResults>2</opensearch:totalResults><opensearch:startIndex>0</opensearch:startIndex><opensearch:itemsPerPage>30</opensearch:itemsPerPage><trackmatches>
$count = $xml->results[0]->opensearch:totalResults ???